![]() Because the shoulder allows for a myriad of biomechanical movements, ensuring ample stability is essential to preventing injury within all of the tissues involved. This collection of muscles is also partially responsible for stabilizing the shoulder joint as a whole. Some of the most commonly discussed muscles are the lower and middle trapezius, as well as the serratus anterior. We won’t go into complete detail about what each of these muscles are responsible for (that could be an entire article on its own), but in the grand scheme of things, these muscles help to stabilize the humerus within the glenohumeral joint.Īdditionally, there are also several scapular muscles correlated with the back of the shoulder: 17, to be exact. Your rotator cuff comprises 4 muscles that connect your scapula (the shoulder blade) to the humerus (the bone of your upper arm). Take the rotator cuff, for instance, which is the muscle group most commonly associated with the shoulder: This is because the muscles that support the shoulder joint have connection points between many of these bony structures. While we may not directly associate the collarbone or the shoulder blades with the joint itself, they actually play a major role in many of our everyday motions involving the arm and shoulder. However, the other 2 joints (sternoclavicular and scapulothoracic) help us envision the true breadth of the shoulder. The acromioclavicular and glenohumeral joints are located at the primary joint that connects the arm to the torso, which is what most people picture when they think of the shoulder joint. Interestingly enough, while people refer to the shoulder as a singular joint, it actually consists of 4 smaller joints. However! Understanding your shoulder mobility is more complex than it may appear the joint itself has a lot of moving parts, and each impacts different facets of your overall shoulder movement. Which is why ensuring full mobilization -including both flexibility and full range of motion - is key for maintaining peak functionality. There are plenty of reasons why shoulder mobility is important, but the easy answer is that your shoulders are involved in just about every upper body movement. Let’s take some time to dissect what our shoulder joints are capable of, and how important a role mobility plays in our day-to-day. ![]() (If you’ve ever caught yourself rolling your shoulders back to loosen them up, you know what we’re talking about.) Shoulder stiffness and pain are both incredibly common issues, regardless of whether or not you lead an athletic lifestyle. ![]() And without a thorough understanding of how it’s built and how it functions, there’s a higher likelihood for deficient biomechanics and gradual, functional limitations. What’s unfortunate is that we don’t always acknowledge how complex the joint actually is. (It actually has the greatest range of motion of any joint in the body!) We often take the shoulder for granted from movements as simple as a shrug to a high velocity baseball pitch, the shoulder is a wildly capable joint essential to our everyday movement. ![]()
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